Lab PSC Exam Model Questions

1. Which is the most susceptible experimental animal used for inoculation of leishmania donovani ?

A) Guinea pig

Hamster

C) Rabbit

D) Mouse #

2. Morphological form of sarcocastis consists of:

A) Oocyst

B) Sporocyst

C) Sarcocyst #

D) All of the Above

3. Patients of post kala-azar dermal leishmaniasis present with:

A) Hypopigmented mucules #

B) Erythematous patches

C) Yellowihs-pink nodules

D) All of the above

4. Post kala-azar dermal leishmaniasis of probably a sequel to infection with:

A) Leishmania donovani

B) Leishmania infantium

C) Leishmania tropica #

D) Leishmania major

5. Invertebrate host for leishmania tropica is:

A) Phlebotomus argentipes #

B) Phlebotomus orientalis

C) Phlebotomus sergenti

D) Phlebotomus patatasi

6. In leishmania tropica infection amastigote form resides in:

A) Clasmatocytes of skin #

B) Reticuloendothelia cells of viscera

C) Sandfly

D) Artificial culture medium

7. Leishmania tropica causes:

A) Kala-azar #

B) Oriental sore

C) Espundia

D) Chiclero's Ulcer

8. Leishmania braziliensis complex resides inside the macrophages of:

A) Skin and mucous membrane of nose and buccal cavity

B) In The internal organs #

C) in the peripheral blood

D) All of the Above

9. Espundia is caused by:

A) Leishmania mexicana complex

B) Leishmania braziliensis complex #

C) Leishmania peruviana

D) Leishmania chagasi

10. American visceral leishmaniasis is caused by:

A) Leishmania mexicana complex

B) Leishmania peruviana

C) Leishmania chagasi #

D) Leishmania tropica

Lab Exam Important MCQ'S

11. Which of the following trypanosomes is nonpathogenic ?

A) Trypanosoma brucei gambiense

B) Trypanosoma brucei rhodesiense

C) Trypanosoma cruzi

D) Trypanosoma rangeli #

12. Changas' disease is caused by:

A) Trypanosoma brucei gamiense

B) Trypanosoma brucei rhodesiense

C) Trypanosoma cruzi

D) Trypanosoma rangeli #

13. Trypanosoma brucei gambiense infection is transmitted by:

A) Female anopheles mosquito #

B) Tsets fly

C) Tratomine bug

D) Female Sandfly

14. Which stages of trypanosoma brucei gambiense is infective for mammalian host ?

A) Metacyclic trypomastigote

B) Long slender form #

C) Short stumpy form

D) Intermediate form

15. Which form of Trypanosoma brucei gambiense is infective to tsetse fly ?

A) Long slender form

B) intermediate form #

C) Short stumpy form

D) Metacyclic trypomastigotes

16. Which of the following drugs is used to treat late secondary CNS stages to trypanosomiasis ?

A) Suramin

B) Pentamidine isethionate #

C) Melarsoprol

D) Amphotericin B

17. Chagoma is seen in infection with:

A) Trypanosoma brucei gambiense #

B) Trypanosoma brucei rhodesiense

C) Trypanosoma cruzi

D) Trypanosoma rangeli

18. Which animal is used for xenodiagnosis of american trypanosomiasis ?

A) Guinea pig #

B) Mouse

C) Triatomine bug

D) Hamster

19. Commonest causes of steatorrhoea is:

A) Giardia lamblia

B) Entamoeba histolytica

C) Toxoplasma gondii

D) Naeglria fowleri #

20. Was discovered by:

A) Giardia lamblia

B) Lambl #

C) Leeuwenhoek

D) Robert koch

21. Enterotest is useful for the indentification of which of the following parasites ?

A) Entoeba histolytia

B) Robert #

C) Trichomonas hominis

D) Ryptosporidium parvum

22. In Trypanosoma cruzi infection the parasite from present muscular and nervous tissue is:

A) Amastigote

B) Promastigote

C) Trypomastigote #

D) Epimastigote

23. Non-ulcerated nodules are characteristic of:

A) Oriental sore

B) Espundia

C) Dermal leishmanoid

D) Kala azar #

24. Trypanosoma brucei gambiense is transmitted by:

A) Housefly #

B) Sandfly

C) Tsetse fly

D) Reduvid bug

25. Trypanosoma cruzi is transmitted by:

A) Sandfly

B) Testes fly

C) Housefly

D) Triatomine bug #

26. Sandfly is the vector of:

A) Leishmania donovani

B) Plasmodium falciparum #

C) Wuchereria bancrofti

D) Brugia malayi

27. Romana's sign is positive in:

A) Malaria

B) Filariasis

C) Chages' disease #

D) Kala-azar

28. Chiclero's ulcer is caused by:

A) Leishmania mexicana complex

B) Leishmania braziliensis complex

C) Leishmania tropica

D) Leishmania infantum #

29. Espundia is caused by:

A) Leishmania mexicana complex #

B) Leishmania braziliensis complex

C) Leishmania tropica

D) Leishmania infantum

30. Oriental sore is caused by:

A) Leishmania donovani

B) Leishmania infantum #

C) Leishmania aethiopica

D) Leishmania tropica

31. Which is the infective form of the malaria parasite ?

A) Oocyst

B) Sporozoite

C) Bradyzoite

D) Tachyzoite #

32. Resting stage to the malaria paraiste is known as:

A) Sporozoite

B) Trophozoite

C) Merozoite

D) Hypnozoite #

33. Relapse of malaria is not seen in infection with:

A) Plasmodium vivax #

B) Plasmodium ovale

C) Plasmodium falciparum

D) All of the above

34. For infection of Misquito, the blood of human carrier must contain atleast:

A) 6 gametocytes/ul

B) 8 gametocytes/ul

C) 10 gametocytes/ul

D) 12 gametocytes/ul #

35. Malaria infection can be transmitted by:

A) Bite to infection female anopheles mosquito

B) Blood transfusion #

C) Vertical transfusion

D) All of the above

36. Plasmodium falciparum is the most pathogenic of the human plasmodium spp. as:

A) It causes a high level of parasitaemia

B) It invades erythrocytes of all ages

C) Its everyrocytic schizogony takes place in the capillaries of internal organs

D) All of the above #

37. Which forms of plasmodium falciparum are generally absent in peripheral blood film of the

patient ?

A) Rings

B) Schizonts

C) Crescents

D) None of the above #

38. Crescent-shaped or banana-shaped gametocytes are seen in infection with:

A) Plasmodium vivax

B) Plasmodium falciparum

C) Plasmodium ovale

D) Plasmodium malariae #

39. Maurer's dotes in red blood cells are seen in infection with:

A) Plasmodium vivax

B) Plasmodium falciparum

C) Plasmodium malariae

D) Plasmodium ovale #

40. Quartan periodicity of malaria is seen in infection with:

A) Plasmodium vivax

B) Plasmodium falciparum

C) Plasmodium malariae

D) Plasmodium ovale #

41. Which drug used to eliminate exoerythrocytic parasites in the liver?

A) Chloroquine

B) Quinine

C) Primaquine

D) Mefloquine #

42. Which was the first arthropod-borne disease to be identified ?

A) Leishmaniasis

B) Trypanosomiasis

C) Malaria

D) Babesiosis #

43. Babesiosis is transmitted by bite of:

A) Mosquito

B) Sandfly

C) Reduviid bug #

D) Tick

44. Which is the infective stage of parasite in babesiosis ?

A) Sporozoite

B) Merozoite

C) Techyzoite #

D) Bradyzoite

45. Which animals is used for diagnosis of babesiosis ?

A) Hamster #

B) Fuinea pig

C) Mouse

D) Rabbit

46. Toxoplasma gondii lives inside the:

A) Lumen of small intestine

B) Lumen of large intestine #

C) Reticuloendothelial cells and many other nucleated cells

D) Red Blood cells

47. Oocysts of Toxoplasma gondii are seen in:

A) Domestic cat and other fellines #

B) Humans

C) Sheep

D) Cattle

48. During which trimester/s of pregnancy infection with Toxoplasma gondii is more severe ?

A) First #

B) Second

C) Third

D) Second and Third

49. Commonest manifestation or postnatally acquired infection with Toxoplasma gondii is:

A) Lymphadenopathy

B) Pneumonitis

C) Myocarditis

D) Meningoencephalitis

50. Intermediate host for sarcocystic hominis is:

A) Man

B) Cattle

C) Pig #

D) Cat

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